Developer Container Shutter with Independent Latch Portions
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Solution Overview
Problem
Existing developer containers for image-forming apparatuses lack a secure and efficient mechanism for opening and closing, which can lead to accidental opening or failure to open, affecting the operation and maintenance of the apparatuses.
Innovation Solution
A developer container design featuring a shutter with independently removable latch portions that allow for secure closure and easy opening, using a support structure and seal to ensure reliable operation and minimize accidental openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple opening and closing mechanism is used, then the device complexity is reduced, but the reliability of preventing accidental opening deteriorates
Solution Approach 1:
The opening and closing mechanism is segmented into multiple independent latch portions (first latch portion and second latch portion) that independently restrain the shutter. Each latch portion provides separate restraint, so that accidental opening requires simultaneous failure of multiple independent elements, significantly improving reliability while keeping each individual latch simple in structure.
2Reliability
If a secure locking mechanism with multiple restraints is used, then the reliability of preventing accidental opening is improved, but the ease of operation deteriorates
Solution Approach 1:
The shutter is designed to automatically engage with both latch portions during the opening operation. When the shutter is pulled to open, it automatically disengages from both latches in sequence without requiring manual intervention to release each latch separately. This self-service mechanism maintains secure closure during normal operation while simplifying the opening operation.
3Reliability
If independent latch portions are used, then the reliability of controlled opening is improved, but the device complexity increases
Solution Approach 1:
Multiple latch portions are merged into a single integrated shutter component rather than being separate assemblies. The first latch portion and second latch portion are both formed as part of the same shutter structure, allowing them to function independently while reducing the overall number of discrete parts and simplifying manufacturing and assembly.
Data Source
AI summary
A developer container includes a container body having an inner space capable of containing a developer and an opening communicating with the inner space; an opening and closing portion that is disposed on the container body and that opens and closes the opening; and a pair of restraining portions that are disposed on the opening and closing portion and that each restrain the opening and closing portion from being moved from a closed position to an open position. The opening and closing portion is permitted to be moved to the open position if the restraint on the movement of the opening and closing portion by each of the pair of restraining portions is independently removed.